Reps deny Ciara and Keri Hilson fight

Representatives for Ciara and Keri Hilson have denied reports that the singers were involved in a fight.

Hilson is said to have refused to perform at a New York gig on Sunday following an alleged argument with the R&B star.

However, Hilson's publicist Sherlen Archibald told the New York Daily News that the musician wasn't in the city that night, explaining that she "had an emergency in LA".

Ciara's spokesperson added that the story is "not true".